Device for automatically injecting solutions into toilet bowls



May 24, 1955 DEVICE FDR AUTOMATICALLY INJECTING SOLUTIQNS INTO TOELETBOWLS Archibald P. Hudgins, Charleston, W. Va.

Application November 28, 1952, Serial No. 322,930

1 Claim. (Cl. 4225) The present invention relates to a device forautomatically injecting solutions into toilet bowls and it consists inthe combinations, constructions and arrangements of parts hereindescribed and claimed.

Generally there is provided a device which is designed to be mountedwithin a conventional flush box of a toilet and which is designed to actautomatically to dispense a measured amount of concentrated solutionsuch as disinfectant, deodorant or perfurning agents through theoverflow tube of a flush tank to the Water in the bowl Where it willremain between flushings of the flush tank.

It is accordingly an object of the invention to provide a novelattachment for flush tanks having means for automatically dispensing asolution to the toilet bowl connected. with such tank.

Another object of the invention is to provide, in a device of thecharacter set forth, novel pressure actuated means for dispensing aliquid, such means forming a part of the invention.

Another object of the invention is to provide a device of the characterset forth which is simple in construction, inexpensive to manufactureand yet effective and efiicient in use.

Uther and further objects of the invention will become apparent from areading of the following specificatio taken in conjunction with thedrawing, in which the figure is an elevational view of an embodiment ofthe invention shown mounted in a conventional flush tank.

Referring more particularly to the drawing, there is shown therein aconventional flush tank 10 having a con. ventional drain pipe 11connected to the lower end thereof and having extending upwardly thereina conventional overflow pipe 12.

The device comprising the present invention consists of a container 13in which may be placed a solution such as a disinfectant, a deodorant ora perfurning agent. A tube 14 extends downwardly to a point adjacent thebottom of the container 13 and is connected to the upper end of a tube15 which protrudes for a distance into the upper end portion of theoverflow pipe 12. The lower end of the member 15 is constricted, asindicated at 1'1, and the end 17 is mounted within a bowl 1-6 which isfixed within the pipe 12.

An elongated tube 18 is provided with a restricted lower end 19 and witha downwardly curved upper end portion ited grace Patent i: whichcommunicates with the interior of the member In operation, it will beapparent that the normal water level is indicated at 21 in the tank 10and that the level of the water in the tank 1%) at the completion of aflushing op ration thereof will be shown at 22. When the tank 10 isflushed and the water has reached the level shown at 22, water in thetube 13 will drop its level thus effecting a partial vacuum within thetube 15 due to the resistance of the constricted portion 17 therein andthe seal effected by the solution in the container 13. A siphon actionwill begin in the tube 14, and the restrictions 17 and 19 arepredetermined in size so that only a measured amount of the cleansingsolution contained in the container 13 is dispensed at each operation.The evacuating action of the tube 18 ends when all the water has flowedtherefrom. As the flush tank begins to refill, the water level will riseto a point indicated at 23 again sealing the orifice l9 and the tube 18will fill above the atmospheric pressure and. such pressure will beresisted by the solution contained in the container 13 and the puddle ofsolution remaining in the bowl 16. This temporarily increased pressureserves for a short period of time to inject solution from the tube 15through the orifice 17 and through the pipe 12 into the commode bowlwhere it will remain until the tank 10 is again flushed and while soremaining will act to cleanse, deodorize and/or perfume the bowl.

While but one form of the invention has been shown and described herein,it will be readily apparent to those skilled in the art that many minormodifications may be made without departing from the spirit of theinvention or the scope of the appended claim.

What is claimed is:

A device of the character described comprising, in combination with aconventional flush tank having a drain pipe connected thereto, and anoverflow pipe mounted therein, the provision of a solution containermounted in said tank, means operable by the normal flushing of said tankfor dispensing a portion of the contents of said container into saidoverflow pipe, said means including a vertical tube extending into theupper portion or" said overflow pipe and having a restricted orifice inits lower end, a cup mounted in said overflow pipe and encompassing saidrestricted orifice, an inverted U-shaped tube having one end connectedto the upper end of said vertical tube and the other end passing throughthe upper end of said container and terminating near the bottom thereof,and a second vertical tube mounted in said tank and connected at itsupper end with the central portion of said first-mentioned verticaltube, said second vertical tube having a restricted orifice in its lowerend, said lower end being in vertical spaced relation to the low waterlevel of said tank.

References Cited in the file of this patent UNITED STATES PATENTS1,866,164 Hughes et al. July 5, 1932 2,199,094 Ahern Apr. 30, 19402,243,454 Collinge et al. May 27, 1941

